Statistics for occurrence #1 of “Dr. Mackay” in chapter 74 of Varina Davis, Jefferson Davis: Ex-President of the Confederate States of America, A Memoir by his Wife, Volume 2:

...racy. Soon after our return from Paris, our skilful and wise physician, Dr. Maurice Davis, discovered that Mr. Davis's heart trouble had not decreased, and he ordered him up to Scotland, whither Dr. Mackay , the poet, kindly consented to accompany him. While visiting our friends, the Abingers, and several gentlemen whose acquaintance he made in Scotland, and during a more protracted visit to his fr...
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